I'm having the exact problem except mine are 26 weeks old, eggs are still smallMy 21 week old BO hens have started laying finally. I realize their first eggs are going to be smaller; however they have been laying for about week and so far each egg is only 1.5 oz. The shells are strong and they are very clean. Has this been everyone elses experience with BO's. What can I expect from this breed as far as egg size, and when can I expect a full size egg.